The book has an interesting layout, with definitions of words on the left, with the text of the story on the right. The book layout is the best layout I've seen of any Shakespeare book, and the size is right (you can take it with you!).
The story is legend - even speaking literally - apparently the story of Hamlet hearkens back to even older legends that predate Shakespeare's Hamlet.
Shakespeare is so quotable, and Hamlet is no different - you often find yourself saying "Oh, that's where that comes from!" and its like finding an old friend in a new story. "To be or not to be, that is the question" is one; so is "Neither a borrower nor a lender be" and so is "To thine own self be true". The book even comes with an appendix listing commonly quoted portions of the story and their source.
This is truly an amazing work, and is a very well-known story. Even if you haven't read the play, or seen any of the film versions, you probably have heard enough to know much of what happens, and are likely familiar with several very famous lines. This was my first time reading the play, and I truly loved it, because it does go far beyond just the famous lines and core story. There is true depth here, with layers of meaning that really strike at the soul of the audience. As to the edition itself, I found it to be greatly helpful in understanding the action in the play. It has a layout which places each page of the play opposite a page of notes, definitions, explanations, and other things needed to understand that page more thoroughly. While I didn't always need it, I was certainly glad to have it whenever I ran into a turn of language that was unfamiliar, and I definitely appreciated the scene-by-scene summaries. Really, if you want to or need to read Shakespeare, an edition such as this is really the way to go, especially until you get more accustomed to it.